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Mays V, Smith N, Pham C, White M, Wu Q, Berry J, Linan A, Alexander Wait D, Kovacs L. Attenuation of photosynthesis in nanosilver-treated Arabidopsis thaliana is inherently linked to the particulate nature of silver. Heliyon 2024; 10:e27583. [PMID: 38509917 PMCID: PMC10950886 DOI: 10.1016/j.heliyon.2024.e27583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/15/2023] [Accepted: 03/03/2024] [Indexed: 03/22/2024] Open
Abstract
Silver nanoparticles (AgNPs) are known to affect the physiology and morphology of plants in various ways, but the exact mechanism by which they interact with plant cells remains to be elucidated. An unresolved question of silver nanotoxicology is whether the interaction is triggered by the physical features of the particles, or by silver ions leached from their surface. In this study, we germinated and grew Arabidopsis thaliana seedlings in synthetic medium supplemented with sub-morbid concentrations (4 μg/mL) of AgNPs and silver nitrate (AgNO3). This treatment led to in planta accumulation of 106 μg/g and 97 μg/g of silver in the AgNO3- and AgNP-exposed seedlings, respectively. Despite the statistically indistinguishable silver accumulation, RNA sequencing data demonstrated distinct changes in the transcriptome of the AgNP-exposed, but not in the AgNO3-exposed plants. AgNP exposure induced changes in the expression of genes involved in immune response, cell wall organization, photosynthesis and cellular defense against reactive oxygen species. AgNO3 exposure, on the other hand, caused the differential expression of only two genes, neither of which belonged to any AgNP-enriched gene ontology categories. Moreover, AgNP exposure led to a 39% reduction (p < 0.001) in total chlorophyll concentration relative to untreated plants which was associated with a 56.9% and 56.2% drop (p < 0.05) in carbon assimilation rate at ambient and saturating light, respectively. Stomatal conductance was not significantly affected by AgNP exposure, and limitations to carbon assimilation, as determined through analysis of light and carbon dioxide (A/Ci) curves, were attributed to rates of electron transport, maximum carboxylation rates and triose phosphate use. AgNO3-exposure, on the other hand, did not lead to significant reduction either in chlorophyll concentration or in carbon assimilation rate. Given these data, we propose that the impact of AgNPs cannot be simply attributed to the presence of the metal in plants, but is innate to the particulate nature of nanosilver.
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Affiliation(s)
- Vincent Mays
- Department of Biology, Missouri State University, Springfield, MO, USA
| | - Natalie Smith
- Department of Biology, Missouri State University, Springfield, MO, USA
| | - Cody Pham
- Department of Biology, Missouri State University, Springfield, MO, USA
| | - Margaret White
- Department of Biology, Missouri State University, Springfield, MO, USA
| | - Qihua Wu
- Jordan Valley Innovation Center, Missouri State University, Springfield, MO, USA
| | - Jacob Berry
- Jordan Valley Innovation Center, Missouri State University, Springfield, MO, USA
| | | | - D. Alexander Wait
- Department of Biology, Missouri State University, Springfield, MO, USA
| | - Laszlo Kovacs
- Department of Biology, Missouri State University, Springfield, MO, USA
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Moors E, Sharma V, Tian F, Javed B. Surface-Modified Silver Nanoparticles and Their Encapsulation in Liposomes Can Treat MCF-7 Breast Cancer Cells. J Funct Biomater 2023; 14:509. [PMID: 37888174 PMCID: PMC10607499 DOI: 10.3390/jfb14100509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/19/2023] [Accepted: 10/07/2023] [Indexed: 10/28/2023] Open
Abstract
Silver nanoparticles (AgNPs) have emerged as a promising tool for cancer treatment due to their unique physicochemical and biological properties. However, their clinical applications are limited by their potential cytotoxicity caused due to oxidation stress and non-specific cellular uptake pathways. To overcome these barriers, surface modifications of AgNPs have been proposed as an effective strategy to enhance their biocompatibility and specificity toward cancer cells. In this study, AgNPs were synthesised using the chemical reduction method and subsequently conjugated with various capping agents such as Polyvinylpyrrolidone (PVP) and Bovine Serum Albumin (BSA). Further, this study involves the synthesis of liposomes by using dipalmitoyl phosphatidylcholine lipid (DPPC) and cholesterol to increase the biocompatibility and bioavailability of AgNPs to MCF-7 breast cancer cells. In vitro, cytotoxicity studies were performed to determine which surface modification method exhibited the highest cytotoxic effect on the MCF-7 breast cancer cells, which was determined through the MTT assay. The AgNPs conjugated with BSA exhibited the highest cytotoxicity at the lowest dosage, with an IC50 of 2.5 μL/mL. The BSA-AgNPs induced a dose-dependent rise in cytotoxicity through the enhancement of nucleophilic dissolution of the AgNPs in cancer cells. In comparison, the unmodified AgNPs had an IC50 value of 3.0 μL/mL, while the PVP-modified AgNPs had an IC50 of 4.24 μL/mL. AgNPs encapsulated in liposomes had an IC50 value of 5.08 μL/mL, which shows that the encapsulation of AgNPs in liposomes controls their entry into cancer cells. The findings of this research have provided insights into the potential use of surface-modified AgNPs and liposomal encapsulated AgNPs as novel therapeutic tools to overcome the conventional treatment limitations of breast cancer cells.
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Affiliation(s)
- Ellenor Moors
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin, D07 H6K8 Dublin, Ireland
- Nanolab, FOCAS Research Institute, Technological University Dublin, D08 CKP1 Dublin, Ireland
| | - Vinayak Sharma
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin, D07 H6K8 Dublin, Ireland
- Nanolab, FOCAS Research Institute, Technological University Dublin, D08 CKP1 Dublin, Ireland
| | - Furong Tian
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin, D07 H6K8 Dublin, Ireland
- Nanolab, FOCAS Research Institute, Technological University Dublin, D08 CKP1 Dublin, Ireland
| | - Bilal Javed
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin, D07 H6K8 Dublin, Ireland
- Nanolab, FOCAS Research Institute, Technological University Dublin, D08 CKP1 Dublin, Ireland
- RELX Elsevier, D18 X6N2 Dublin, Ireland
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Biosynthesized Silver Nanoparticles Using Morus alba (White Mulberry) Leaf Extract as Potential Antibacterial and Anticancer Agents. Molecules 2023; 28:molecules28031213. [PMID: 36770881 PMCID: PMC9920803 DOI: 10.3390/molecules28031213] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 01/28/2023] Open
Abstract
In this study, we report the green synthesis of silver nanoparticles (AgNPs) from Morus alba or white mulberry leaf extract (MLE) and assess their antibacterial and anticancer potential. The GC-MS analysis of MLE confirmed the existence of phenolic compounds, serving as reducing, capping, and stabilizing agents in the biosynthesis of AgNPs. The MLE-AgNPs were spherical, with an average particle size of 20-44.5 nm and a face-centered cubic structure. EDX spectra confirmed the formation of AgNPs, and a negative zeta potential value (-14.5 mV) suggested their physicochemical stability. Excellent antibacterial activity was demonstrated by MLE-AgNPs against Acinetobacter baumannii strains with a MIC of 2 μg/mL, while good activity was observed against other Gram-negative (Escherichia coli and Salmonella typhimurium) and Gram-positive (Bacillus subtilis and Staphylococcus aureus) bacteria with a MIC of 32 μg/mL. In vitro cytotoxic effects on MCF-7 (human breast cancer cells) and MCF-10A (normal human mammary epithelial cells) were investigated by the MTT assay. The half-maximal inhibitory concentrations (IC50) against MCF-7 cells were 18 and 33 μg/mL for MLE-AgNPs and MLE, respectively, with no effect on normal MCF-10A cells. Altogether, the results support the high antibacterial and anticancer potential of biosynthesized AgNPs by white mulberry leaf extract.
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Mahjoubian M, Naeemi AS, Moradi-Shoeili Z, Tyler CR, Mansouri B. Toxicity of Silver Nanoparticles in the Presence of Zinc Oxide Nanoparticles Differs for Acute and Chronic Exposures in Zebrafish. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 84:1-17. [PMID: 36333621 DOI: 10.1007/s00244-022-00965-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
We assessed the acute toxicity effects (96 h) of silver nanoparticles (Ag NPs) and zinc oxide nanoparticles (ZnO NPs) and chronic (28 d) exposure to Ag NPs, including in combination with ZnO NPs. In the chronic studies, we further assessed the toxicokinetics and bioaccumulation of Ag and the resulting histopathological effects in the gill, intestine, and liver of zebrafish. Co-exposures with ZnO NPs reduced the toxicity of Ag NPs for acute (lethality) but enhanced the toxicity effects (tissue histopathology) for chronic exposures. The histological lesions for both NPs exposures in the gill included necrosis and fusion of lamellae, for the intestine necrosis and degeneration, and in the liver, mainly necrosis. The severity of the histological lesions induced by the Ag NPs was related to the amount of accumulated Ag in the zebrafish organs. The Ag accumulation in different organs was higher in the presence of ZnO NPs in the order of the gill > intestine > liver. Depuration kinetics illustrated the lowest half-life for Ag occurred in the gill and for the combined exposure of Ag with ZnO NPs. Our findings illustrate that in addition to tissue, time, and exposure concentration dependencies, the Ag NPs toxicity can also be influenced by the co-exposure to other NPs (here ZnO NPs), emphasizing the need for more combination exposure effects studies for NPs to more fully understand their potential environmental health risks.
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Affiliation(s)
- Maryam Mahjoubian
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - Akram Sadat Naeemi
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran.
| | | | - Charles R Tyler
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Geoffrey Pope, Stocker Road, Exeter, EX4 4QD, Devon, UK
| | - Borhan Mansouri
- Substance Abuse Prevention Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Ge C, Huang D, Wang D, Zhang E, Li M, Zhu F, Zhu C, Chen N, Wu S, Zhou D. Biotic Process Dominated the Uptake and Transformation of Ag + by Shewanella oneidensis MR-1. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:2366-2377. [PMID: 35107264 DOI: 10.1021/acs.est.1c06369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Silver ions (Ag+) directly emitted from industrial sources or released from manufactured Ag nanoparticles (AgNPs) in biosolid-amended soils have raised concern about the risk to ecosystems. However, our knowledge of Ag+ toxicity, internalization, and transformation mechanisms to bacteria is still insufficient. Here, we combine the advanced technologies of hyperspectral imaging (HSI) and single-particle inductively coupled plasma mass spectrometry to visualize the potential formed AgNPs inside the bacteria and evaluate the contributions of biological and non-biological processes in the uptake and transformation of Ag+ by Shewanella oneidensis MR-1. The results showed a dose-dependent toxicity of Ag+ to S. oneidensis MR-1 in the ferrihydrite bioreduction process, which was primarily induced by the actively internalized Ag. Moreover, both HSI and cross-section high-resolution transmission electron microscopy results confirmed that Ag inside the bacteria existed in the form of particulate. The Ag mass distribution in and around live and inactivated cells demonstrated that the uptake and transformation of Ag+ by S. oneidensis MR-1 were mainly via biological process. The bioaccumulation of Ag+ may be lethal to bacteria. A better understanding of the uptake and transformation of Ag+ in bacteria is central to predict and monitor the key factors that control Ag partitioning dynamics at the biointerface, which is critical to develop practical risk assessment and mitigation strategies.
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Affiliation(s)
- Chenghao Ge
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P.R. China
| | - Danyu Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P.R. China
| | - Dixiang Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P.R. China
| | - Enze Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P.R. China
| | - Min Li
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225000, P.R. China
| | - Fengxiao Zhu
- School of Environment, Nanjing Normal University, Nanjing 210023, P.R. China
| | - Changyin Zhu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P.R. China
| | - Ning Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P.R. China
| | - Song Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P.R. China
| | - Dongmei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P.R. China
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6
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Fawcett LP, Fringer VS, Sieber JR, Maurer-Jones MA. The effect of plastic additives on Shewanella oneidensis growth and function. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2021; 23:956-966. [PMID: 34085083 DOI: 10.1039/d1em00108f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Plastic waste has the potential for significant consequences on various ecosystems; yet, there are gaps in our understanding of the interaction of bacteria with polymer additives. We studied the impact of representative additive molecules to the viability and cell function of Shewanella oneidensis MR-1. Specifically, we explored the toxicity of three bisphenols (bisphenol A (BPA), bisphenol S (BPS), and tetrabromo bisphenol A (TBBPA)) and two diesters (dibutyl sebacate (DBS) and diisobutyl phthalate (DIBP)) in order to evaluate the generalizability of toxicity based on similar molecular structures. TBBPA caused significant, dose-dependent decreases in viability for acute (4 h) exposures in aerobic and anaerobic conditions. While the other 4 additives showed no significant toxicity upon 4 h exposures, chronic (2 day) anaerobic exposures revealed a significant impact to growth. BPA and BPS cause a significant decrease in growth rates for all exposure doses (8-131 μM) while DBS and DIBP had decreases in growth for the lowest exposure concentrations, though recovered to growth rates similar to the control at the highest concentrations. This highlights that S. oneidensis may have the ability to use the diesters as a carbon source if present in high enough concentrations. Riboflavin secretion was monitored as a marker of cellular health. Most additives stimulated riboflavin secretion as a survival response. Yet, there was no generalizable trend observed for these molecules, indicating the importance of considering the nuances of molecular structure to toxicity responses and the need for further work to understand the consequences of plastic waste in our environment.
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Affiliation(s)
- Liam P Fawcett
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, Duluth, MN, USA55812.
| | - Victoria S Fringer
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, Duluth, MN, USA55812.
| | - Jessica R Sieber
- Department of Biology, University of Minnesota Duluth, Duluth, MN, USA55812
| | - Melissa A Maurer-Jones
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, Duluth, MN, USA55812.
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7
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Chen XV, Mousavi MP, Bühlmann P. Fluorous-Phase Ion-Selective pH Electrodes: Electrode Body and Ionophore Optimization for Measurements in the Physiological pH Range. ACS OMEGA 2020; 5:13621-13629. [PMID: 32566827 PMCID: PMC7301372 DOI: 10.1021/acsomega.0c00582] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 05/18/2020] [Indexed: 06/11/2023]
Abstract
Because of their low polarity and polarizability, fluorous sensing membranes are both hydrophobic and lipophobic and exhibit very high ion selectivities. Here, we report on a new fluorous-membrane ion-selective electrode (ISE) with a wide sensing range centered around physiologically relevant pH values. The fluorophilic tris[perfluoro(octyl)butyl]amine (N[(CH2)4Rf8]3) was synthesized and tested as a new H+ ionophore using a redesigned electrode body that provides excellent mechanical sealing and much improved measurement reliability. In a challenging 1 M KCl background, these fluorous-phase ISEs exhibit a sensing range from pH 2.2 to 11.2, which is one of the widest working ranges reported to date for ionophore-based H+ ISEs. High selectivities against common interfering ions such as K+, Na+, and Ca2+ were determined (selectivity coefficients: logK H, K pot = - 11.6; logK H, Na pot = - 12.4; logK H, Ca pot < - 10.2). The use of the N[(CH2)4Rf8]3 ionophore with its -(CH2)4- spacers separating the amino group from the strongly electron-withdrawing perfluorooctyl groups improved the potentiometric selectivity as compared to the less basic tris[perfluoro(octyl)propyl]amine ionophore. The use of N[(CH2)4Rf8]3 also made the ISE less prone to counter anion failure (i.e., Donnan failure) at low pH than the use of tris[perfluoro(octyl)pentyl]amine with its longer -(CH2)5- spacers, which more effectively shield the amino center from the perfluorooctyl groups. In addition, we exposed both conventional plasticized PVC-phase pH ISEs and fluorous-phase pH ISEs to 10% serum for 5 days. Results show that the PVC-phase ISEs lost selectivity while their fluorous-phase counterparts did not.
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Some S, Sarkar B, Biswas K, Jana TK, Bhattacharjya D, Dam P, Mondal R, Kumar A, Deb AK, Sadat A, Saha S, Kati A, Ocsoy I, Franco OL, Mandal A, Mandal S, Mandal AK, İnce İA. Bio-molecule functionalized rapid one-pot green synthesis of silver nanoparticles and their efficacy toward the multidrug resistant (MDR) gut bacteria of silkworms ( Bombyx mori). RSC Adv 2020; 10:22742-22757. [PMID: 35514551 PMCID: PMC9054587 DOI: 10.1039/d0ra03451g] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 05/20/2020] [Indexed: 01/29/2023] Open
Abstract
The present study aimed to synthesise bio-molecule functionalized silver nanoparticles (AgNPs) using leaf extract from mulberry variety S-1635 (Morus alba L.) and to explore its antibacterial efficacy against multidrug resistant (MDR) gut bacteria isolated from natural infection observed from silkworm larvae in rearing conditions. AgNPs formation was established by surface plasmon resonance at 480 nm. The crystallinity of the synthesised AgNPs was checked by HR-TEM and XRD analysis. SEM and TEM characterisation further exhibited the spherical, monodispersed, well scattered nature of the AgNPs with an average particle size of 11.8 nm ± 2.8. The presence of (111), (200), (220) and (311) planes in Bragg's reflections confirmed the face-cantered-cubic crystalline silver. EDX analysis confirmed the presence of elemental silver. FT-IR spectra revealed functional groups were responsible for the reduction of silver ions. The zeta potential value of -17.3 mV and -25.6 mV was recorded in MH and DMEM/F-12 media, respectively. The LC-QTOF/MS and HRMS spectra disclosed the presence of bioactive compounds like flavonoid, gallic acid, and stigmasterol, which are probably involved in the reduction and functionalization of AgNPs. The antibacterial efficacy of bio-molecule functionalized AgNPs and the naked AgNPs was tested on Gram-positive and Gram-negative bacteria isolated from silkworms and characterized by using 16S rDNA and gyrB genes. The cytotoxicity of AgNPs was tested on WRL-68, HEK-293, ACHN, and HUH-7 cell lines using MTT assay. This study provides an insight into the application of bio-molecule functionalized AgNPs for combating various silkworm pathogens which severely affect the agro-rural economy of developing countries.
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Affiliation(s)
- Sudip Some
- Chemical Biology Laboratory, Department of Sericulture, Raiganj University Raiganj-733134 India
| | - Biraj Sarkar
- Department of Microbiology, Laboratory of Molecular Bacteriology, University of Calcutta 700019 India
| | - Kinkar Biswas
- Laboratory of Organic Synthesis, Department of Chemistry, Raiganj University Raiganj-733134 India
| | - Tushar K Jana
- Department of Physics, Vidyasagar University Midnapore-721102 India
| | - Debjoy Bhattacharjya
- Cytogenetics & Plant Biotechnology Research Unit, Department of Sericulture, Raiganj University Raiganj-733134 India
| | - Paulami Dam
- Chemical Biology Laboratory, Department of Sericulture, Raiganj University Raiganj-733134 India
| | - Rittick Mondal
- Chemical Biology Laboratory, Department of Sericulture, Raiganj University Raiganj-733134 India
| | - Anoop Kumar
- ANMOL Laboratory, Department of Biotechnology, North Bengal University Darjeeling-734013 India
| | - Apurba K Deb
- Department of Physics, Raiganj University Raiganj-733134 India
| | - Abdul Sadat
- Insect Ecology and Conservation Biology Laboratory, Department of Sericulture, Raiganj University Raiganj-733134 India
| | - Soumen Saha
- Cytogenetics & Plant Biotechnology Research Unit, Department of Sericulture, Raiganj University Raiganj-733134 India
| | - Ahmet Kati
- Department of Biotechnology, Institution of Health Sciences, University of Health Sciences Uskudar Istanbul 34668 Turkey
- Department of Medical Microbiology, School of Medicine, Acibadem Mehmet Ali Aydınlar University 34752 Ataşehir Istanbul Turkey
| | - Ismail Ocsoy
- Department of Analytical Chemistry, Faculty of Pharmacy, Erciyes University 38039 Kayseri Turkey
| | - Octavio L Franco
- S-INOVA Biotech, Post-Graduate Program in Biotechnology, Catholic University Dom Bosco Campo Grande Mato Grosso Do Sul Brazil
| | - Amitava Mandal
- Molecular Complexity Laboratory, Department of Chemistry, Raiganj University Raiganj-733134 India
| | - Sukhendu Mandal
- Department of Microbiology, Laboratory of Molecular Bacteriology, University of Calcutta 700019 India
| | - Amit Kumar Mandal
- Chemical Biology Laboratory, Department of Sericulture, Raiganj University Raiganj-733134 India
- Centre for Nanotechnology Sciences, Raiganj University Raiganj-733134 India
| | - İkbal Agah İnce
- Department of Medical Microbiology, School of Medicine, Acibadem Mehmet Ali Aydınlar University 34752 Ataşehir Istanbul Turkey
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Yin T, Han T, Li C, Qin W, Bobacka J. Real-time monitoring of the dissolution of silver nanoparticles by using a solid-contact Ag+-selective electrode. Anal Chim Acta 2020; 1101:50-57. [DOI: 10.1016/j.aca.2019.12.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/07/2019] [Accepted: 12/09/2019] [Indexed: 01/19/2023]
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10
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Chakraborty S, Misra SK. A comparative analysis of dialysis based separation methods for assessing copper oxide nanoparticle solubility. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.enmm.2019.100258] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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De Leersnyder I, De Gelder L, Van Driessche I, Vermeir P. Revealing the Importance of Aging, Environment, Size and Stabilization Mechanisms on the Stability of Metal Nanoparticles: A Case Study for Silver Nanoparticles in a Minimally Defined and Complex Undefined Bacterial Growth Medium. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1684. [PMID: 31775314 PMCID: PMC6955861 DOI: 10.3390/nano9121684] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/14/2019] [Accepted: 11/17/2019] [Indexed: 12/15/2022]
Abstract
Although the production and stabilization of metal nanoparticles (MNPs) is well understood, the behavior of these MNPs (possible aggregation or disaggregation) when they are intentionally or unintentionally exposed to different environments is a factor that continues to be underrated or overlooked. A case study is performed to analyze the stability of silver nanoparticles (AgNPs)-one of the most frequently used MNPs with excellent antibacterial properties-within two bacterial growth media: a minimally defined medium (IDL) and an undefined complex medium (LB). Moreover, the effect of aging, size and stabilization mechanisms is considered. Results clearly indicate a strong aggregation when AgNPs are dispersed in IDL. Regarding LB, the 100 nm electrosterically stabilized AgNPs remain stable while all others aggregate. Moreover, a serious aging effect is observed for the 10 nm electrostatically stabilized AgNPs when added to LB: after aggregation a restabilization effect occurs over time. Generally, this study demonstrates that the aging, medium composition (environment), size and stabilization mechanism-rarely acknowledged as important factors in nanotoxicity studies-have a profound impact on the AgNPs stabilization and should gain more attention in scientific research.
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Affiliation(s)
- Ilse De Leersnyder
- Laboratory of Chemical Analysis (LCA), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | - Leen De Gelder
- Department of Biotechnology, Laboratory for Environmental Biotechnology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | - Isabel Van Driessche
- Department of Chemistry, Sol-Gel Center for Research on Inorganic Powders and Thin Film Synthesis (SCRiPTS), Faculty of Sciences, 9000 Ghent, Belgium
| | - Pieter Vermeir
- Laboratory of Chemical Analysis (LCA), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
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Cellulose nanofibril/silver nanoparticle composite as an active food packaging system and its toxicity to human colon cells. Int J Biol Macromol 2019; 129:887-894. [DOI: 10.1016/j.ijbiomac.2019.02.084] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 02/10/2019] [Accepted: 02/14/2019] [Indexed: 01/16/2023]
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13
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Bell JG, Mousavi MP, Abd El-Rahman MK, Tan EK, Homer-Vanniasinkam S, Whitesides GM. Paper-based potentiometric sensing of free bilirubin in blood serum. Biosens Bioelectron 2019; 126:115-121. [DOI: 10.1016/j.bios.2018.10.055] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 10/04/2018] [Accepted: 10/25/2018] [Indexed: 12/14/2022]
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14
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Hamilton RF, Wu Z, Thakkar M, Holian A, Mitra S. Modification of nano-silver bioactivity by adsorption on carbon nanotubes and graphene oxide. Inhal Toxicol 2019; 30:429-438. [PMID: 30618316 DOI: 10.1080/08958378.2018.1547334] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVE The toxicity of silver nanomaterials in various forms has been extensively evaluated, but the toxicity of silver nanocarbon composites is less well understood. Therefore, silver-carbon nanotube composites (Ag-MWCNT-COOH) and silver-graphene oxide composites (Ag-GO) were synthesized by microwave irradiation and evaluated in two in vitro cell models. MATERIALS/METHODS Toxicity of silver nanosphere (Ag), Ag-MWCNT-COOH and Ag-GO were analyzed by MTS assay and LDH assay in primary C57BL/6 murine alveolar macrophages and human THP-1 cells. Activation of NLRP3 inflammasome by particle variants in these models was done by proxy using LPS co-culture and IL-1β release. RESULTS The results depended on the model, as the amount of Ag on the modified carbon resulted in slightly increased toxicity for the murine cells, but did not appear to affect toxicity in the human cell model. IL-1β release from carbon particle-exposures was decreased by the presence of Ag in both cell models. Suspensions of Ag-MWCNT-COOH, Ag-GO and Ag in artificial lysosomal fluid were prepared and ICP-MS was used to detect Ag ions concentration in three silver suspension/solutions. The amount of Ag ions released from Ag-MWCNT-COOH and Ag-GO were similar, which were both lower than that of Ag nanospheres. CONCLUSIONS The results suggest the bioactivity of silver composites may be related to the amount of Ag ions released, which can be dependent on the cell model under investigation.
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Affiliation(s)
- Raymond F Hamilton
- a Center for Environmental Health Sciences, University of Montana , Missoula , MT , USA
| | - Zheqiong Wu
- b Department of Chemistry and Environmental Science , New Jersey Institute of Technology , Newark , NJ , USA
| | - Megha Thakkar
- b Department of Chemistry and Environmental Science , New Jersey Institute of Technology , Newark , NJ , USA
| | - Andrij Holian
- a Center for Environmental Health Sciences, University of Montana , Missoula , MT , USA
| | - Somenath Mitra
- b Department of Chemistry and Environmental Science , New Jersey Institute of Technology , Newark , NJ , USA
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15
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Guo C, Buckley A, Marczylo T, Seiffert J, Römer I, Warren J, Hodgson A, Chung KF, Gant TW, Smith R, Leonard MO. The small airway epithelium as a target for the adverse pulmonary effects of silver nanoparticle inhalation. Nanotoxicology 2018; 12:539-553. [PMID: 29750584 DOI: 10.1080/17435390.2018.1465140] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Experimental modeling to identify specific inhalation hazards for nanomaterials has in the main focused on in vivo approaches. However, these models suffer from uncertainties surrounding species-specific differences and cellular targets for biologic response. In terms of pulmonary exposure, approaches which combine 'inhalation-like' nanoparticulate aerosol deposition with relevant human cell and tissue air-liquid interface cultures are considered an important complement to in vivo work. In this study, we utilized such a model system to build on previous results from in vivo exposures, which highlighted the small airway epithelium as a target for silver nanoparticle (AgNP) deposition. RNA-SEQ was used to characterize alterations in mRNA and miRNA within the lung. Organotypic-reconstituted 3D human primary small airway epithelial cell cultures (SmallAir) were exposed to the same spark-generated AgNP and at the same dose used in vivo, in an aerosol-exposure air-liquid interface (AE-ALI) system. Adverse effects were characterized using lactate, LDH release and alterations in mRNA and miRNA. Modest toxicological effects were paralleled by significant regulation in gene expression, reflective mainly of specific inflammatory events. Importantly, there was a level of concordance between gene expression changes observed in vitro and in vivo. We also observed a significant correlation between AgNP and mass equivalent silver ion (Ag+) induced transcriptional changes in SmallAir cultures. In addition to key mechanistic information relevant for our understanding of the potential health risks associated with AgNP inhalation exposure, this work further highlights the small airway epithelium as an important target for adverse effects.
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Affiliation(s)
- Chang Guo
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Oxfordshire , UK.,b The National Institute for Health Research Health Protection Research Unit (NIHR HPRU) in Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London , London , UK
| | - Alison Buckley
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Oxfordshire , UK.,b The National Institute for Health Research Health Protection Research Unit (NIHR HPRU) in Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London , London , UK
| | - Tim Marczylo
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Oxfordshire , UK.,b The National Institute for Health Research Health Protection Research Unit (NIHR HPRU) in Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London , London , UK
| | - Joanna Seiffert
- c Airways Disease, National Heart & Lung Institute, Imperial College , London , UK
| | - Isabella Römer
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Oxfordshire , UK.,b The National Institute for Health Research Health Protection Research Unit (NIHR HPRU) in Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London , London , UK
| | - James Warren
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Oxfordshire , UK
| | - Alan Hodgson
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Oxfordshire , UK
| | - Kian Fan Chung
- c Airways Disease, National Heart & Lung Institute, Imperial College , London , UK
| | - Timothy W Gant
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Oxfordshire , UK.,b The National Institute for Health Research Health Protection Research Unit (NIHR HPRU) in Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London , London , UK
| | - Rachel Smith
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Oxfordshire , UK.,b The National Institute for Health Research Health Protection Research Unit (NIHR HPRU) in Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London , London , UK
| | - Martin O Leonard
- a Centre for Radiation, Chemical and Environmental Hazards , Public Health England , Oxfordshire , UK.,b The National Institute for Health Research Health Protection Research Unit (NIHR HPRU) in Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London , London , UK
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16
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Graf C, Nordmeyer D, Sengstock C, Ahlberg S, Diendorf J, Raabe J, Epple M, Köller M, Lademann J, Vogt A, Rancan F, Rühl E. Shape-Dependent Dissolution and Cellular Uptake of Silver Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:1506-1519. [PMID: 29272915 DOI: 10.1021/acs.langmuir.7b03126] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The cellular uptake and dissolution of trigonal silver nanoprisms (edge length 42 ± 15 nm, thickness 8 ± 1 nm) and mostly spherical silver nanoparticles (diameter 70 ± 25 nm) in human mesenchymal stem cells (hMSC's) and human keratinocytes (HaCaT cells) were investigated. Both particles are stabilized by polyvinylpyrrolidone (PVP), with the prisms additionally stabilized by citrate. The nanoprisms dissolved slightly in pure water but strongly in isotonic saline or at pH 4, corresponding to the lowest limit for the pH during cellular uptake. The tips of the prisms became rounded within minutes due to their high surface energy. Afterward, the dissolution process slowed down due to the presence of both PVP stabilizing Ag{100} sites and citrate blocking Ag{111} sites. On the contrary, nanospheres, solely stabilized by PVP, dissolved within 24 h. These results correlate with the finding that particles in both cell types have lost >90% of their volume within 24 h. hMSC's took up significantly more Ag from nanoprisms than from nanospheres, whereas HaCaT cells showed no preference for one particle shape. This can be rationalized by the large cellular interaction area of the plateletlike nanoprisms and the bending stiffness of the cell membranes. hMSC's have a highly flexible cell membrane, resulting in an increased uptake of plateletlike particles. HaCaT cells have a membrane with a 3 orders of magnitude higher Young's modulus than for hMSC. Hence, the energy gain due to the larger interaction area of the nanoprisms is compensated for by the higher energy needed for cell membrane deformation compared to that for spheres, leading to no shape preference.
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Affiliation(s)
- Christina Graf
- Physikalische und Theoretische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin , 14195 Berlin, Germany
| | - Daniel Nordmeyer
- Physikalische und Theoretische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin , 14195 Berlin, Germany
| | - Christina Sengstock
- Bergmannsheil University Hospital/Surgical Research, Ruhr-University Bochum , 44789 Bochum, Germany
| | - Sebastian Ahlberg
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin , 10117 Berlin, Germany
| | - Jörg Diendorf
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen , 45117 Essen, Germany
| | - Jörg Raabe
- Swiss Light Source, Paul Scherrer Institut , 5232 Villigen, Switzerland
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen , 45117 Essen, Germany
| | - Manfred Köller
- Bergmannsheil University Hospital/Surgical Research, Ruhr-University Bochum , 44789 Bochum, Germany
| | - Jürgen Lademann
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin , 10117 Berlin, Germany
| | - Annika Vogt
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin , 10117 Berlin, Germany
| | - Fiorenza Rancan
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin , 10117 Berlin, Germany
| | - Eckart Rühl
- Physikalische und Theoretische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin , 14195 Berlin, Germany
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17
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Ma C, White JC, Zhao J, Zhao Q, Xing B. Uptake of Engineered Nanoparticles by Food Crops: Characterization, Mechanisms, and Implications. Annu Rev Food Sci Technol 2018; 9:129-153. [PMID: 29580140 DOI: 10.1146/annurev-food-030117-012657] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
With the rapidly increasing demand for and use of engineered nanoparticles (NPs) in agriculture and related sectors, concerns over the risks to agricultural systems and to crop safety have been the focus of a number of investigations. Significant evidence exists for NP accumulation in soils, including potential particle transformation in the rhizosphere and within terrestrial plants, resulting in subsequent uptake by plants that can yield physiological deficits and molecular alterations that directly undermine crop quality and food safety. In this review, we document in vitro and in vivo characterization of NPs in both growth media and biological matrices; discuss NP uptake patterns, biotransformation, and the underlying mechanisms of nanotoxicity; and summarize the environmental implications of the presence of NPs in agricultural ecosystems. A clear understanding of nano-impacts, including the advantages and disadvantages, on crop plants will help to optimize the safe and sustainable application of nanotechnology in agriculture for the purposes of enhanced yield production, disease suppression, and food quality.
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Affiliation(s)
- Chuanxin Ma
- Department of Analytical Chemistry, Connecticut Agricultural Experiment Station, New Haven, Connecticut 06504, USA.,Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, USA;
| | - Jason C White
- Department of Analytical Chemistry, Connecticut Agricultural Experiment Station, New Haven, Connecticut 06504, USA
| | - Jian Zhao
- Institute of Coastal Environmental Pollution Control, Ocean University of China, Qingdao 266100, China
| | - Qing Zhao
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, USA;
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18
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Parandhaman T, Das SK. Facile synthesis, biofilm disruption properties and biocompatibility study of a poly-cationic peptide functionalized graphene–silver nanocomposite. Biomater Sci 2018; 6:3356-3372. [DOI: 10.1039/c8bm01003j] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Safe-by-design synthesis of a poly-cationic functionalized graphene–silver nanocomposite as a novel eco-benign antibacterial, biofilm inhibiting and disrupting agent.
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Affiliation(s)
- Thanusu Parandhaman
- Biological Materials Laboratory
- Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI)
- Chennai-600020
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Sujoy K. Das
- Biological Materials Laboratory
- Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI)
- Chennai-600020
- India
- Academy of Scientific and Innovative Research (AcSIR)
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19
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Yusuf A, Brophy A, Gorey B, Casey A. Liposomal encapsulation of silver nanoparticles enhances cytotoxicity and causes induction of reactive oxygen species-independent apoptosis. J Appl Toxicol 2017; 38:616-627. [DOI: 10.1002/jat.3566] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 10/09/2017] [Accepted: 10/19/2017] [Indexed: 12/16/2022]
Affiliation(s)
- A. Yusuf
- School of Physics; Dublin Institute of Technology; Kevin Street Dublin 8 Ireland
- Nanolab Research Centre, FOCAS Research Institute; Dublin Institute of Technology; Kevin Street Dublin 8 Ireland
| | - A. Brophy
- Nanolab Research Centre, FOCAS Research Institute; Dublin Institute of Technology; Kevin Street Dublin 8 Ireland
| | - B. Gorey
- Nanolab Research Centre, FOCAS Research Institute; Dublin Institute of Technology; Kevin Street Dublin 8 Ireland
| | - A. Casey
- School of Physics; Dublin Institute of Technology; Kevin Street Dublin 8 Ireland
- Nanolab Research Centre, FOCAS Research Institute; Dublin Institute of Technology; Kevin Street Dublin 8 Ireland
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20
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Lugert‐Thom EC, Gladysz JA, Rábai J, Bühlmann P. Cleaning of pH Selective Electrodes with Ionophore‐doped Fluorous Membranes in NaOH Solution at 90 °C. ELECTROANAL 2017. [DOI: 10.1002/elan.201700228] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Elizabeth C. Lugert‐Thom
- Department of Chemistry University of Minnesota 207 Pleasant St. SE Minneapolis, MN 55455 United States
| | - John A. Gladysz
- Department of Chemistry Texas A&M University P.O. Box 30012, College Station, TX 77842 United States
| | - József Rábai
- Institute of Chemistry Eötvös Loránd University Pázmány Péter sétány 1-A, H- 1117 Budapest Hungary
| | - Philippe Bühlmann
- Department of Chemistry University of Minnesota 207 Pleasant St. SE Minneapolis, MN 55455 United States
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21
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Silver Nanoparticles Against Salmonella enterica Serotype Typhimurium: Role of Inner Membrane Dysfunction. Curr Microbiol 2017; 74:661-670. [PMID: 28321528 DOI: 10.1007/s00284-017-1235-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 03/14/2017] [Indexed: 10/19/2022]
Abstract
The evolution of antibiotics-resistant bacteria is considered a major concern. To explore promising antibacterial materials and clarify their unknown mechanisms, the mode of action of silver nanoparticles (AgNPs) against Salmonella enterica serotype typhimurium was investigated. We investigated the effect of AgNPs on the bacterial membrane. The N-phenyl-1-naphthylamine assay showed that the permeability of the outer membrane was not changed by treatment with AgNPs. The O-nitrophenyl-β-D-galactopyranoside assay showed that the inner membrane permeability increased as AgNPs concentration increased. Our results showed that AgNPs affected the inner membrane without outer membrane damage. Generally, antibiotic-induced reactive oxygen species (ROS) and changes in the Ca2+ gradient are known to contribute to bacterial cell death. Likewise, we detected that AgNPs induced the accumulation of ROS and intracellular Ca2+ depending on its concentration, using 2',7'-dichlorodihydrofluorescein and Fura-2AM, respectively. At higher concentrations, no relationship between oxidative stress and bactericidal effects of AgNPs was confirmed through a cell viability assay and intracellular Ca2+ assay with antioxidant N-acetylcysteine. In this study, the inner membrane disruption followed by membrane dysfunction played a key role in the antibacterial activity of AgNPs against S. typhimurium. Contrary to the expected results, ROS do not influence growth inhibition of AgNPs.
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22
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Johnson MM, Mendoza R, Raghavendra AJ, Podila R, Brown JM. Contribution of engineered nanomaterials physicochemical properties to mast cell degranulation. Sci Rep 2017; 7:43570. [PMID: 28262689 PMCID: PMC5337938 DOI: 10.1038/srep43570] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 01/25/2017] [Indexed: 12/25/2022] Open
Abstract
The rapid development of engineered nanomaterials (ENMs) has grown dramatically in the last decade, with increased use in consumer products, industrial materials, and nanomedicines. However, due to increased manufacturing, there is concern that human and environmental exposures may lead to adverse immune outcomes. Mast cells, central to the innate immune response, are one of the earliest sensors of environmental insult and have been shown to play a role in ENM-mediated immune responses. Our laboratory previously determined that mast cells are activated via a non-FcεRI mediated response following silver nanoparticle (Ag NP) exposure, which was dependent upon key physicochemical properties. Using bone marrow-derived mast cells (BMMCs), we tested the hypothesis that ENM physicochemical properties influence mast cell degranulation. Exposure to 13 physicochemically distinct ENMs caused a range of mast degranulation responses, with smaller sized Ag NPs (5 nm and 20 nm) causing the most dramatic response. Mast cell responses were dependent on ENMs physicochemical properties such as size, apparent surface area, and zeta potential. Surprisingly, minimal ENM cellular association by mast cells was not correlated with mast cell degranulation. This study suggests that a subset of ENMs may elicit an allergic response and contribute to the exacerbation of allergic diseases.
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Affiliation(s)
- Monica M Johnson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, CO 80045, USA
| | - Ryan Mendoza
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, CO 80045, USA
| | - Achyut J Raghavendra
- Department of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA.,Clemson Nanomaterials Center and COMSET, Clemson University, Anderson, SC 296225, USA
| | - Ramakrishna Podila
- Department of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA.,Clemson Nanomaterials Center and COMSET, Clemson University, Anderson, SC 296225, USA
| | - Jared M Brown
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, CO 80045, USA
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23
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Carey JL, Hirao A, Sugiyama K, Bühlmann P. Semifluorinated Polymers as Ion-selective Electrode Membrane Matrixes. ELECTROANAL 2016. [DOI: 10.1002/elan.201600586] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jesse L. Carey
- Department of Chemistry; University of Minnesota; 207 Pleasant Street SE Minneapolis MN
| | - Akira Hirao
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1 Ohokayama, Meguro-ku Tokyo 152-8552 Japan
| | - Kenji Sugiyama
- Department of Chemical Science and Technology; Hosei University; 3-7-2 Kajino-chou, Koganei Tokyo 184-8584 Japan
| | - Philippe Bühlmann
- Department of Chemistry; University of Minnesota; 207 Pleasant Street SE Minneapolis MN
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24
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Yoo J, Shim T, Hur J, Jung J. Role of polarity fractions of effluent organic matter in binding and toxicity of silver and copper. JOURNAL OF HAZARDOUS MATERIALS 2016; 317:344-351. [PMID: 27318731 DOI: 10.1016/j.jhazmat.2016.06.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 04/28/2016] [Accepted: 06/04/2016] [Indexed: 06/06/2023]
Abstract
This study evaluates the effect of the physicochemical properties of effluent organic matter (EfOM) from industrial and sewage wastewater treatment plants (WWTPs) on the binding and toxicity of Ag and Cu. EfOM was isolated into hydrophobic, transphilic, and hydrophilic fractions depending on its polarity, and was characterized by elemental, specific ultraviolet absorbance, and fluorescence excitation-emission matrix analyses. Our results suggest that the EfOM consists of microbially derived non-humic substances that have lower aromaticity than the Suwannee River natural organic matter (SR-NOM). The Freundlich model was better at explaining the binding of Ag and Cu onto both SR-NOM and EfOM than the Langmuir model. In particular, the hydrophilic fractions of sewage EfOM showed higher binding capacities and affinities for Ag and Cu than the corresponding hydrophobic fractions, resulting in better reduction of the acute toxicity of Ag and Cu towards Daphnia magna. However, in the case of both SR-NOM and industrial EfOM, the hydrophobic fractions were more efficient at reducing metal toxicity. These findings suggest that the EfOM has different physicochemical properties compared with NOM and that the binding and toxicity of heavy metals are largely dependent on the polarity fractions of EfOM.
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Affiliation(s)
- Jisu Yoo
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Taeyong Shim
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Jin Hur
- Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea
| | - Jinho Jung
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul 02841, Republic of Korea.
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25
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Anderson EL, Gingery NM, Boswell PG, Chen XV, Rábai J, Bühlmann P. Ion Aggregation and R 3N +-C(R)-H···NR 3 Hydrogen Bonding in a Fluorous Phase. J Phys Chem B 2016; 120:11239-11246. [PMID: 27723332 DOI: 10.1021/acs.jpcb.6b07299] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Potentiometric selectivities show that in fluorous ion-selective electrode membranes the tetrabutylammonium ion binds to fluorophilic proton ionophores. For the ionophore bis[3-(perfluorooctyl)propyl](2,2,2-trifluoroethyl)amine, this type of interaction is confirmed by the effect of the ionophore on the ionic conductivity of perfluoro(perhydrophenanthrene) solutions of a fluorophilic NBu4+ salt. In this system, ion pairs, triple ions, and higher ionic aggregates dominate over single ions, and the ionophore increases the conductivity by favoring the formation of ion aggregates with a net charge. These observations are consistent with the formation of R3N+-C(R)-H···NR3 type hydrogen bonds between the nitrogen atom of the ionophore and the hydrogen atoms in the α position to the positively charged quaternary ammonium center of NBu4+. Similar interactions were observed in a number of crystalline phases. To date, observations of C-H···N type hydrogen bonds in liquid phases have been very few, and solution-phase N+-C-H···N type hydrogen bonds have not been reported previously. Interestingly, no interactions between NBu4+ and the more basic ionophore tridodecylamine were observed in conventional plasticized poly(vinyl chloride) membranes doped with the ionophore tridodecylamine, emphasizing the uniquely low polarity of fluorous phases.
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Affiliation(s)
- Evan L Anderson
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Nicole M Gingery
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Paul G Boswell
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Xin V Chen
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - József Rábai
- Institute of Chemistry, Eötvös Loránd University , P.O. Box 32, H-1518 Budapest 112, Hungary
| | - Philippe Bühlmann
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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26
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27
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Mousavi MPS, Saba SA, Anderson EL, Hillmyer MA, Bühlmann P. Avoiding Errors in Electrochemical Measurements: Effect of Frit Material on the Performance of Reference Electrodes with Porous Frit Junctions. Anal Chem 2016; 88:8706-13. [DOI: 10.1021/acs.analchem.6b02025] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Maral P. S. Mousavi
- Department of Chemistry and ‡Department of
Chemical Engineering and Materials
Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Stacey A. Saba
- Department of Chemistry and ‡Department of
Chemical Engineering and Materials
Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Evan L. Anderson
- Department of Chemistry and ‡Department of
Chemical Engineering and Materials
Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Marc A. Hillmyer
- Department of Chemistry and ‡Department of
Chemical Engineering and Materials
Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Philippe Bühlmann
- Department of Chemistry and ‡Department of
Chemical Engineering and Materials
Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
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28
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Rosário F, Hoet P, Santos C, Oliveira H. Death and cell cycle progression are differently conditioned by the AgNP size in osteoblast-like cells. Toxicology 2016; 368-369:103-115. [DOI: 10.1016/j.tox.2016.08.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/24/2016] [Accepted: 08/30/2016] [Indexed: 01/27/2023]
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29
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Adamczyk Z, Oćwieja M, Mrowiec H, Walas S, Lupa D. Oxidative dissolution of silver nanoparticles: A new theoretical approach. J Colloid Interface Sci 2016; 469:355-364. [DOI: 10.1016/j.jcis.2015.12.051] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 12/27/2015] [Indexed: 11/17/2022]
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30
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Johnston KA, Smith AM, Marbella LE, Millstone JE. Impact of As-Synthesized Ligands and Low-Oxygen Conditions on Silver Nanoparticle Surface Functionalization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3820-3826. [PMID: 27077550 DOI: 10.1021/acs.langmuir.6b00232] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Here, we compare the ligand exchange behaviors of silver nanoparticles synthesized in the presence of two different surface capping agents: poly(vinylpyrrolidone) (MW = 10 or 40 kDa) or trisodium citrate, and under either ambient or low-oxygen conditions. In all cases, we find that the polymer capping agent exhibits features of a weakly bound ligand, producing better ligand exchange efficiencies with an incoming thiolated ligand compared to citrate. The polymer capping agent also generates nanoparticles that are more susceptible to reactions with oxygen during both synthesis and ligand exchange. The influence of the original ligand on the outcome of ligand exchange reactions with an incoming thiolated ligand highlights important aspects of silver nanoparticle surface chemistry, crucial for applications ranging from photocatalysis to antimicrobials.
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Affiliation(s)
- Kathryn A Johnston
- Department of Chemistry, University of Pittsburgh , 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Ashley M Smith
- Department of Chemistry, University of Pittsburgh , 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Lauren E Marbella
- Department of Chemistry, University of Pittsburgh , 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Jill E Millstone
- Department of Chemistry, University of Pittsburgh , 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
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31
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K. Comfort K. The rise of nanotoxicology: A successful collaboration between engineering and biology. AIMS BIOENGINEERING 2016. [DOI: 10.3934/bioeng.2016.3.230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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32
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Majedi SM, Lee HK. Recent advances in the separation and quantification of metallic nanoparticles and ions in the environment. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.08.009] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Yi F, Chen G, Zeng G, Guo Z, Liu W, Huang Z, He K, Hu L. Influence of cysteine and bovine serum albumin on silver nanoparticle stability, dissolution, and toxicity to Phanerochaete chrysosporium. RSC Adv 2016. [DOI: 10.1039/c6ra23675h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Cysteine (CYS) and bovine serum albumin (BSA) interact with silver nanoparticles (AgNPs) and influence its release, transportation, and toxicity.
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Affiliation(s)
- Feng Yi
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Guiqiu Chen
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Guangming Zeng
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Zhi Guo
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Weiwei Liu
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Zhenzhen Huang
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Kai He
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Liang Hu
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
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34
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Carey JL, Whitcomb DR, Chen S, Penn RL, Bühlmann P. Potentiometric in Situ Monitoring of Anions in the Synthesis of Copper and Silver Nanoparticles Using the Polyol Process. ACS NANO 2015; 9:12104-12114. [PMID: 26580413 DOI: 10.1021/acsnano.5b05170] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Potentiometric sensors, such as polymeric membrane, ion-selective electrodes (ISEs), have been used in the past to monitor a variety of chemical processes. However, the use of these sensors has traditionally been limited to aqueous solutions and moderate temperatures. Here we present an ISE with a high-capacity ion-exchange sensing membrane for measurements of nitrate and nitrite in the organic solvent propylene glycol at 150 °C. It is capable of continuously measuring under these conditions for over 180 h. We demonstrate the usefulness of this sensor by in situ monitoring of anion concentrations during the synthesis of copper and silver nanoparticles in propylene glycol using the polyol method. Ion chromatography and a colorimetric method were used to independently confirm anion concentrations measured in situ. In doing so, it was shown that in this reaction the co-ion nitrate is reduced to nitrite.
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Affiliation(s)
- Jesse L Carey
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - David R Whitcomb
- Carestream Health , 1 Imation Way, Oakdale, Minnesota 55128, United States
| | - Suyue Chen
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - R Lee Penn
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Philippe Bühlmann
- Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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35
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Chao JB, Zhou XX, Shen MH, Tan ZQ, Liu R, Yu SJ, Wang XW, Liu JF. Speciation Analysis of Labile and Total Silver(I) in Nanosilver Dispersions and Environmental Waters by Hollow Fiber Supported Liquid Membrane Extraction. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:14213-20. [PMID: 26580982 DOI: 10.1021/acs.est.5b02917] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Hollow fiber supported liquid membrane (HFSLM) extraction was coupled with ICP-MS for speciation analysis of labile Ag(I) and total Ag(I) in dispersions of silver nanoparticles (AgNPs) and environmental waters. Ag(I) in aqueous samples was extracted into the HFSLM of 5%(m/v) tri-n-octylphosphine oxide in n-undecane, and stripped in the acceptor of 10 mM Na2S2O3 and 1 mM Cu(NO3)2 prepared in 5 mM NaH2PO4-Na2HPO4 buffer (pH 7.5). Negligible depletion and exhaustive extraction were conducted under static and 250 rpm shaking to extract the labile Ag(I) and total Ag(I), respectively. The extraction equilibration was reached in 8 h for both extraction modes. The extraction efficiency and detection limit were (2.97 ± 0.25)% and 0.1 μg/L for labile Ag(I), and (82.3 ± 2.0)% and 0.5 μg/L for total Ag(I) detection, respectively. The proposed method was applied to determine labile Ag(I) and total Ag(I) in different sized AgNP dispersions and real environmental waters, with spiked recoveries of total Ag(I) in the range of 74.0-98.1%. With the capability of distinguishing labile and total Ag(I), our method offers a new approach for evaluating the bioavailability and understanding the fate and toxicity of AgNPs in aquatic systems.
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Affiliation(s)
- Jing-Bo Chao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences , Beijing 100085, China
- Chemical Metrology and Analytical Science Division, National Institute of Metrology , P. R. China , Beijing 100029
| | - Xiao-Xia Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences , Beijing 100085, China
| | - Mo-Hai Shen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences , Beijing 100085, China
| | - Zhi-Qiang Tan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences , Beijing 100085, China
| | - Rui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences , Beijing 100085, China
| | - Su-Juan Yu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences , Beijing 100085, China
| | - Xiao-Wei Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences , Beijing 100085, China
| | - Jing-Fu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences , Beijing 100085, China
- Institute of Environment and Health, Jianghan University , Hubei Province, Wuhan 430056, China
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36
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Mousavi MPS, Gunsolus IL, Pérez De Jesús CE, Lancaster M, Hussein K, Haynes CL, Bühlmann P. Dynamic silver speciation as studied with fluorous-phase ion-selective electrodes: Effect of natural organic matter on the toxicity and speciation of silver. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 537:453-461. [PMID: 26284896 PMCID: PMC4643687 DOI: 10.1016/j.scitotenv.2015.07.151] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 07/30/2015] [Accepted: 07/30/2015] [Indexed: 05/31/2023]
Abstract
The widespread application of silver in consumer products and the resulting contamination of natural environments with silver raise questions about the toxicity of Ag(+) in the ecosystem. Natural organic matter, NOM, which is abundant in water supplies, soil, and sediments, can form stable complexes with Ag(+), altering its bioavailability and toxicity. Herein, the extent and kinetics of Ag(+) binding to NOM, matrix effects on Ag(+) binding to NOM, and the effect of NOM on Ag(+) toxicity to Shewanella oneidensis MR-1 (assessed by the BacLight viability assay) were quantitatively studied with fluorous-phase Ag(+) ion-selective electrodes (ISEs). Our findings show fast kinetics of Ag(+) and NOM binding, weak Ag(+) binding for Suwannee River humic acid, fulvic acid, and aquatic NOM, and stronger Ag(+) binding for Pony Lake fulvic acid and Pahokee Peat humic acid. We quantified the effects of matrix components and pH on Ag(+) binding to NOM, showing that the extent of binding greatly depends on the environmental conditions. The effect of NOM on the toxicity of Ag(+) does not correlate with the extent of Ag(+) binding to NOM, and other forms of silver, such as Ag(+) reduced by NOM, are critical for understanding the effect of NOM on Ag(+) toxicity. This work also shows that fluorous-phase Ag(+) ISEs are effective tools for studying Ag(+) binding to NOM because they can be used in a time-resolved manner to monitor the activity of Ag(+) in situ with high selectivity and without the need for extensive sample preparation.
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Affiliation(s)
- Maral P S Mousavi
- Department of Chemistry, University of Minnesota, 207 Pleasant Street South East, Minneapolis, MN 55455, United States
| | - Ian L Gunsolus
- Department of Chemistry, University of Minnesota, 207 Pleasant Street South East, Minneapolis, MN 55455, United States
| | - Carlos E Pérez De Jesús
- Department of Chemistry, University of Minnesota, 207 Pleasant Street South East, Minneapolis, MN 55455, United States
| | - Mitchell Lancaster
- Department of Chemistry, University of Minnesota, 207 Pleasant Street South East, Minneapolis, MN 55455, United States
| | - Kadir Hussein
- Department of Chemistry, University of Minnesota, 207 Pleasant Street South East, Minneapolis, MN 55455, United States
| | - Christy L Haynes
- Department of Chemistry, University of Minnesota, 207 Pleasant Street South East, Minneapolis, MN 55455, United States.
| | - Philippe Bühlmann
- Department of Chemistry, University of Minnesota, 207 Pleasant Street South East, Minneapolis, MN 55455, United States.
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37
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Affiliation(s)
- Ian L. Gunsolus
- Department of Chemistry, University of Minnesota, 207 Pleasant
Street SE, Minneapolis, Minnesota 55455, United States
| | - Christy L. Haynes
- Department of Chemistry, University of Minnesota, 207 Pleasant
Street SE, Minneapolis, Minnesota 55455, United States
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38
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Affiliation(s)
- Eric Bakker
- Department of Inorganic and
Analytical Chemistry, University of Geneva, 1211 Geneva, Switzerland
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39
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Effect of ionic-strength adjusters on the detection of silver ion using ion-selective electrode. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-015-0015-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Gunsolus IL, Mousavi MPS, Hussein K, Bühlmann P, Haynes CL. Effects of Humic and Fulvic Acids on Silver Nanoparticle Stability, Dissolution, and Toxicity. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:8078-86. [PMID: 26047330 PMCID: PMC4643692 DOI: 10.1021/acs.est.5b01496] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The colloidal stability of silver nanoparticles (AgNPs) in natural aquatic environments influences their transport and environmental persistence, while their dissolution to Ag(+) influences their toxicity to organisms. Here, we characterize the colloidal stability, dissolution behavior, and toxicity of two industrially relevant classes of AgNPs (i.e., AgNPs stabilized by citrate or polyvinylpyrrolidone) after exposure to natural organic matter (NOM, i.e., Suwannee River Humic and Fulvic Acid Standards and Pony Lake Fulvic Acid Reference). We show that NOM interaction with the nanoparticle surface depends on (i) the NOM's chemical composition, where sulfur- and nitrogen-rich NOM more significantly increases colloidal stability, and (ii) the affinity of the capping agent for the AgNP surface, where nanoparticles with loosely bound capping agents are more effectively stabilized by NOM. Adsorption of NOM is shown to have little effect on AgNP dissolution under most experimental conditions, the exception being when the NOM is rich in sulfur and nitrogen. Similarly, the toxicity of AgNPs to a bacterial model (Shewanella oneidensis MR-1) decreases most significantly in the presence of sulfur- and nitrogen-rich NOM. Our data suggest that the rate of AgNP aggregation and dissolution in aquatic environments containing NOM will depend on the chemical composition of the NOM, and that the toxicity of AgNPs to aquatic microorganisms is controlled primarily by the extent of nanoparticle dissolution.
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41
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Huang K, Xu K, Tang J, Yang L, Zhou J, Hou X, Zheng C. Room Temperature Cation Exchange Reaction in Nanocrystals for Ultrasensitive Speciation Analysis of Silver Ions and Silver Nanoparticles. Anal Chem 2015; 87:6584-91. [DOI: 10.1021/acs.analchem.5b00511] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ke Huang
- Key
Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Kailai Xu
- Key
Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Jie Tang
- Key
Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Lu Yang
- Chemical
Metrology, Measurement Science and Standards, National Research Council Canada, Ottawa, Canada, K1A 0R6
| | - Jingrong Zhou
- Key
Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Xiandeng Hou
- Key
Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Chengbin Zheng
- Key
Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
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42
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Exposure medium: key in identifying free Ag+ as the exclusive species of silver nanoparticles with acute toxicity to Daphnia magna. Sci Rep 2015; 5:9674. [PMID: 25858866 PMCID: PMC4392358 DOI: 10.1038/srep09674] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 03/16/2015] [Indexed: 02/07/2023] Open
Abstract
It is still not very clear what roles the various Ag species play in the toxicity of silver nanoparticles (AgNPs). In this study, we found that traditional exposure media result in uncontrollable but consistent physicochemical transformation of AgNPs, causing artifacts in determination of median lethal concentration (LC50) and hindering the identification of Ag species responsible for the acute toxicity of AgNPs to Daphnia magna. This obstacle was overcome by using 8 h exposure in 0.1 mmol L(-1) NaNO3 medium, in which we measured the 8-h LC50 of seven AgNPs with different sizes and coatings, and determined the concentrations of various Ag species. The LC50 as free Ag(+) of the seven AgNPs (0.37-0.44 μg L(-1)) agreed very well with that of AgNO3 (0.40 μg L(-1)), and showed the lowest value compared to that as total Ag, total Ag(+), and dissolved Ag, demonstrating free Ag(+) is exclusively responsible for the acute toxicity of AgNPs to D. magna, while other Ag species in AgNPs have no contribution to the acute toxicity. Our results demonstrated the great importance of developing appropriate exposure media for evaluating risk of nanomaterials.
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43
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Hsiao IL, Hsieh YK, Wang CF, Chen IC, Huang YJ. Trojan-horse mechanism in the cellular uptake of silver nanoparticles verified by direct intra- and extracellular silver speciation analysis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:3813-21. [PMID: 25692749 DOI: 10.1021/es504705p] [Citation(s) in RCA: 160] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The so-called "Trojan-horse" mechanism, in which nanoparticles are internalized within cells and then release high levels of toxic ions, has been proposed as a behavior in the cellular uptake of Ag nanoparticles (AgNPs). While several reports claim to have proved this mechanism by measuring AgNPs and Ag ions (I) in cells, it cannot be fully proven without examining those two components in both intra- and extracellular media. In our study, we found that even though cells take up AgNPs similarly to (microglia (BV-2)) or more rapidly than (astrocyte (ALT)) Ag (I), the ratio of AgNPs to total Ag (AgNPs+Ag (I)) in both cells was lower than that in outside media. It could be explained that H2O2, a major intracellular reactive oxygen species (ROS), reacts with AgNPs to form more Ag (I). Moreover, the major speciation of Ag (I) in cells was Ag(cysteine) and Ag(cysteine)2, indicating the possible binding of monomer cysteine or vital thiol proteins/peptides to Ag ions. Evidence we found indicates that the Trojan-horse mechanism really exists.
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Affiliation(s)
- I-Lun Hsiao
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013
| | - Yi-Kong Hsieh
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013
| | - Chu-Fang Wang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013
| | - I-Chieh Chen
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013
| | - Yuh-Jeen Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013
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44
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Zhou XX, Liu R, Liu JF. Rapid chromatographic separation of dissoluble Ag(I) and silver-containing nanoparticles of 1-100 nanometer in antibacterial products and environmental waters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:14516-14524. [PMID: 25417798 DOI: 10.1021/es504088e] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Sensitive and rapid methods for speciation analysis of nanoparticulate Ag (NAg) and Ag(I) in complex matrices are urgently needed for understanding the environmental effects and biological toxicity of silver nanoparticles (AgNPs). Herein we report the development of a universal liquid chromatography (LC) method for rapid and high resolution separation of dissoluble Ag(I) from nanoparticles covering the entire range of 1-100 nm in 5 min. By using a 500 Å poresize amino column, and an aqueous mobile phase containing 0.1% (v/v) FL-70 (a surfactant) and 2 mM Na2S2O3 at a flow rate of 0.7 mL/min, all the nanoparticles of various species such as Ag and Ag2S were eluted in one fraction, while dissoluble Ag(I) was eluted as a baseline separated peak. The dissoluble Ag(I) was quantified by the online coupled ICP-MS with a detection limit of 0.019 μg/L. The NAg was quantified by subtracting the dissoluble Ag(I) from the total Ag content, which was determined by ICP-MS after digestion of the sample without LC separation. While the addition of FL-70 and Na2S2O3 into the mobile phase is essential to elute NAg and Ag(I) from the column, the use of 500 Å poresize column is the key to baseline separation of Ag(I) from ∼ 1 nm AgNPs. The feasibility of the proposed method was demonstrated in speciation analysis of dissoluble Ag(I) and NAg in antibacterial products and environmental waters, with very good chromatographic repeatability (relative standard deviations) in both peak area (<2%) and retention time (<0.6%), excellent spiked recoveries in the range of 84.7-102.7% for Ag(I) and 81.3-106.3% for NAg. Our work offers a novel approach to rapid and baseline separation of dissoluble metal ions from their nanoparticulate counterparts covering the whole range of 1-100 nm.
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Affiliation(s)
- Xiao-Xia Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, Beijing 100085, China
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45
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Tai JT, Lai CS, Ho HC, Yeh YS, Wang HF, Ho RM, Tsai DH. Protein-silver nanoparticle interactions to colloidal stability in acidic environments. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:12755-12764. [PMID: 25294101 DOI: 10.1021/la5033465] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We report a kinetic study of Ag nanoparticles (AgNPs) under acidic environments (i.e., pH 2.3 to pH ≈7) and systematically investigate the impact of protein interactions [i.e., bovine serum albumin (BSA) as representative] to the colloidal stability of AgNPs. Electrospray-differential mobility analysis (ES-DMA) was used to characterize the particle size distributions and the number concentrations of AgNPs. Transmission electron microscopy was employed orthogonally to provide visualization of AgNPs. For unconjugated AgNPs, the extent of aggregation, or the average particle size, was shown to be increased significantly with an increase of acidity, where a partial coalescence was found between the primary particles of unconjugated AgNP clusters. Aggregation rate constant, kD, was also shown to be proportional to acidity, following a correlation of log(kD) = -1.627(pH)-9.3715. Using ES-DMA, we observe BSA had a strong binding affinity (equilibrium binding constant, ≈ 1.1 × 10(6) L/mol) to the surface of AgNPs, with an estimated maximum molecular surface density of ≈0.012 nm(-2). BSA-functionalized AgNPs exhibited highly-improved colloidal stability compared to the unconjugated AgNPs under acidic environments, where both the acid-induced interfacial dissolution and the particle aggregation became negligible. Results confirm a complex mechanism of colloidal stability of AgNPs: the aggregation process was shown to be dominant, and the formation of BSA corona on AgNPs suppressed both particle aggregation and interfacial dissolution of AgNP samples under acidic environments.
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Affiliation(s)
- Jui-Ting Tai
- Department of Chemical Engineering, National Tsing Hua University , Hsinchu, Taiwan 30013, Republic of China
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46
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Wagner S, Gondikas A, Neubauer E, Hofmann T, von der Kammer F. Finde den Unterschied: synthetische und natürliche Nanopartikel in der Umwelt - Freisetzung, Verhalten und Verbleib. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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47
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Wagner S, Gondikas A, Neubauer E, Hofmann T, von der Kammer F. Spot the difference: engineered and natural nanoparticles in the environment--release, behavior, and fate. Angew Chem Int Ed Engl 2014; 53:12398-419. [PMID: 25348500 DOI: 10.1002/anie.201405050] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Indexed: 01/02/2023]
Abstract
The production and use of nanoparticles leads to the emission of manufactured or engineered nanoparticles into the environment. Those particles undergo many possible reactions and interactions in the environment they are exposed to. These reactions and the resulting behavior and fate of nanoparticles in the environment have been studied for decades through naturally occurring nanoparticulate (1-100 nm) and colloidal (1-1000 nm) substances. The knowledge gained from these investigations is nowhere near sufficiently complete to create a detailed model of the behavior and fate of engineered nanoparticles in the environment, but is a valuable starting point for the risk assessment of these novel materials. It is the aim of this Review to critically compare naturally observed processes with those found for engineered systems to identify the "nanospecific" properties of manufactured particles and describe critical knowledge gaps relevant for the risk assessment of manufactured nanomaterials in the environment.
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Affiliation(s)
- Stephan Wagner
- Department of Environmental Geosciences, University of Vienna, Althansstrasse 14, UZA II, Vienna, 1090 (Austria)
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48
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Peretyazhko TS, Zhang Q, Colvin VL. Size-controlled dissolution of silver nanoparticles at neutral and acidic pH conditions: kinetics and size changes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:11954-61. [PMID: 25265014 DOI: 10.1021/es5023202] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Silver nanoparticles (Ag(NP)) are widely utilized in increasing number of medical and consumer products due to their antibacterial properties. Once released to aquatic system, Ag(NP) undergoes oxidative dissolution leading to production of toxic Ag(+). Dissolved Ag(+) can have a severe impact on various organisms, including indigenous microbial communities, fungi, alga, plants, vertebrates, invertebrates, and human cells. Therefore, it is important to investigate fate of Ag(NP) and determine physico-chemicals parameters that control Ag(NP) behavior in the natural environment. Nanoparticle size might have a dominant effect on Ag(NP) dissolution in natural waters. In this work, we investigated size-dependent dissolution of AgNP exposed to ultrapure deionized water (pH ≈ 7) and acetic acid (pH 3) and determined changes in nanoparticle size after dissolution. Silver nanoparticles stabilized by thiol functionalized methoxyl polyethylene glycol (PEGSH) of 6 nm (Ag(NP_)6), 9 nm (Ag(NP_)9), 13 nm (Ag(NP_)13), and 70 nm (Ag(NP_)70) were prepared. The results of dissolution experiments showed that the extent of AgNP dissolution in acetic acid was larger than in water. Solubility of Ag(NP) increased with the size decrease and followed the order Ag(NP_)6 > Ag(NP_)9 > Ag(NP_)13 > Ag(NP_)70 in both water and acetic acid. Transmission electron microscopy (TEM) was applied to characterize changes in size and morphology of the AgNP after dissolution in water. Analysis of Ag(NP) by TEM revealed that the particle morphology did not change during dissolution. The particles remained approximately spherical in shape, and no visible aggregation was observed in the samples. TEM analysis also demonstrated that Ag(NP_)6, Ag(NP_)9, and Ag(NP_)13 increased in size after dissolution likely due to Ostwald ripening.
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Affiliation(s)
- Tanya S Peretyazhko
- Department of Chemistry, Rice University , Houston, Texas 77005, United States
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Su CK, Liu HT, Hsia SC, Sun YC. Quantitatively Profiling the Dissolution and Redistribution of Silver Nanoparticles in Living Rats Using a Knotted Reactor-Based Differentiation Scheme. Anal Chem 2014; 86:8267-74. [DOI: 10.1021/ac501691z] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Cheng-Kuan Su
- Department of Biomedical
Engineering and Environmental Sciences, National Tsing-Hua University, Hsinchu, 30013, Taiwan
| | - Hsin-Tung Liu
- Department of Biomedical
Engineering and Environmental Sciences, National Tsing-Hua University, Hsinchu, 30013, Taiwan
| | - Sheng-Chieh Hsia
- Department of Biomedical
Engineering and Environmental Sciences, National Tsing-Hua University, Hsinchu, 30013, Taiwan
| | - Yuh-Chang Sun
- Department of Biomedical
Engineering and Environmental Sciences, National Tsing-Hua University, Hsinchu, 30013, Taiwan
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Mettela G, Siddhanta S, Narayana C, Kulkarni GU. Nanocrystalline Ag microflowers as a versatile SERS platform. NANOSCALE 2014; 6:7480-7488. [PMID: 24882056 DOI: 10.1039/c4nr01120a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this paper, the synthesis of Ag microflowers for use as manipulable and reusable substrates in surface enhanced Raman spectroscopy (SERS) is demonstrated, working with ultra-low volumes of the analyte. Flower-like AgBr crystallites with a growth direction of 〈110〉 were first obtained by thermolysing a complex obtained by the stabilization of (AgCl2)(-) anions with tetraoctylammonium bromide. NaBH4 reduction leads to the formation of porous Ag microflowers (50-100 μm) with interconnected nanoparticles. The coupling of the nanoparticles in the microflower results in broadband extinction from visible to IR wavelengths, facilitating SERS using both red and green wavelengths. Using thiophenol as test analyte, uniform SERS enhancement factors in the range of 10(6)-10(8) have been achieved from different parts of the microflower. The microflowers have been used for labeled and non-labeled detection of both single- and double-stranded DNA and using simple manipulation techniques, SERS data have been collected from ultra-low volumes of the analyte solution (∼0.34 nL). The reusability of the substrate for SERS over multiple cycles involving a rapid and efficient wet chemical cleaning procedure is also demonstrated. Finally, by placing the microflower in a microfluidic device, chemical reactions have been examined in situ.
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Affiliation(s)
- Gangaiah Mettela
- Thematic Unit of Excellence on Nanochemistry and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore 560064, India.
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